qdrant-fix-flusher-data-race-in-gridstor-v2

Task gallery / Software engineering / Version 1

Reference solution (oracle): Pass
No-op resistance check: Pass
QA verdict: taxonomy: Evaluating; QA: QA-J READY: oracle root + agent uid1001 1 (22/22); nop
Aggregate eligibility: Eligible version

The task

Some searches in this Qdrant build return the wrong results Teams using this build of Qdrant have started filing reports: certain queries come back with results that are simply wrong. There is no panic and no error, the request succeeds and the payload it returns is incorrect. The workspace compiles cleanly and cargo test is green, which is exactly how this reached them unnoticed. The reports do have one thing in co…

Excerpt only; not a complete executable task specification. Task ID task_2547b6a32e6145ce · version 1. Selection status: not fully recorded.

Results by model and effort

This exact task version only. Every rate is passes / valid runs with a Wilson 95% interval; n≤2 remains counts only. Macro aggregation does not apply within a single task. Baselines are summarized in the quality gates, not ranked. A passed no-op resistance check means that doing nothing did not solve the task.

Current evidence

Model / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes
Claude Opus 5 · default (unverified)	4/7 · 57.1% [25.0%, 84.2%]	5 / 7	3	GOOD_FAILURE: 2 BAD_FAILURE: 1 GOOD_SUCCESS: 2 BAD_SUCCESS: 0

Legacy evidence

Model / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes

Difficulty, with uncertainty

Selected-best difficulty: 42.9% [15.8%, 75.0%]. This is one minus the best measured current-row pass rate among rows with at least five valid runs.

The maximum is selected from the observed rows, so the estimate is optimistic. Its Wilson interval is not adjusted for model selection. “Hard” requires qualifying GOOD_FAILURE evidence; the threshold flag additionally requires the interval and recorded quality gates to meet the documented rule. This is not independent validation. Threshold flag: no.

Every recorded run

12 recorded trials, including controls. Diagnostic labels do not replace verifier reward. Labels and quality checks are source declarations, not independently attested here. Internal evidence remains private; a missing public URL is shown explicitly. Records with invalid or absent rewards are not scored.

Run / model	Date / source	Reward / eligibility	Diagnostic class / source	Resources	Evidence
`trial_3af7edf5864240f7` nop@@	Oct 13, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: — Turns: — Cost: —	Not publicly available
`trial_4412783f52f84094` oracle@@	Oct 13, 2026 console	1 · valid	GOOD_SUCCESS frozen-classifier	Tokens: — Turns: — Cost: —	Not publicly available
`trial_2e68c6fe03174cf6` Claude Opus 5 · default (unverified)	Oct 14, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 101,732 Turns: 83 Cost: $10.4108	Not publicly available
`trial_4317945c94e74819` Claude Opus 5 · default (unverified)	Oct 14, 2026 console	1 · valid	GOOD_SUCCESS frozen-classifier	Tokens: 116,332 Turns: 102 Cost: $12.0470	Not publicly available
`trial_8e18ea1a03c0424f` Claude Opus 5 · default (unverified)	Oct 14, 2026 console	1 · valid	No diagnostic label derived	Tokens: 143,938 Turns: 118 Cost: $15.2942	Not publicly available
`trial_14b0d8e366654d83` Claude Opus 5 · default (unverified)	Oct 14, 2026 console	1 · valid	No diagnostic label derived	Tokens: 122,240 Turns: 72 Cost: $10.0955	Not publicly available
`trial_3e383a8bcc1e47cd` Claude Opus 5 · default (unverified)	Oct 14, 2026 console	1 · valid	GOOD_SUCCESS frozen-classifier	Tokens: 90,326 Turns: 59 Cost: $7.4279	Not publicly available
`trial_4fad109e72f34556` Claude Opus 5 · default (unverified)	Oct 14, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 134,257 Turns: 90 Cost: $13.3750	Not publicly available
`trial_79b15c3ab3394283` Claude Opus 5 · default (unverified)	Oct 14, 2026 console	0 · valid	BAD_FAILURE frozen-classifier	Tokens: 135,133 Turns: 105 Cost: $13.6908	Not publicly available
`trial_87be943594d3481f` Claude Opus 5 · default (unverified)	Oct 14, 2026 console	0 · excludedharness_error	HARNESS_ERROR independent-review	Tokens: 0 Turns: 1 Cost: $0.0000	Not publicly available
`trial_a72f0bcf1cba41cc` Claude Opus 5 · default (unverified)	Oct 14, 2026 console	0 · excludedharness_error	HARNESS_ERROR independent-review	Tokens: 0 Turns: 1 Cost: $0.0000	Not publicly available
`trial_d4169f59548e4906` Claude Opus 5 · default (unverified)	Oct 14, 2026 console	0 · excludedharness_error	HARNESS_ERROR independent-review	Tokens: 0 Turns: 1 Cost: $0.0000	Not publicly available